Improvement in knitting-machines and needles



v.2 Sheets-Sheet 1.

A. W. ALLEN.

, KNITTING MACHINE AND NEEDLE. N0. 109,793.

' Patented Dec. 65,1870,

2 Shets-Sheet 2.

A. W. ALLEN. KNITTING MACHINE AND NEEDLE. No. 109,793. Patented Dec 6,1870.

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a 1: CQ) (0 B A B i o g Nwgtfi LT \mmesmg Lmmmmm idtitzt titer AUSTINW., ALLE N, OF INDIANAPOLIS, INDIANA.

Letters Patent No. 109,793, dated December 6, 187-0.

IMPROVEMENT lN KNlTTlNG-MACHINES AND NEEDLES.

The Schedule referred to in these Letters Patent and making part of thesame.

To whom it may concern;

Be it known that I, AUSTIN W. ALLEN, of Indianapolis, in the county ofMarionand State of Indiana, have invented certain new andnsefuLImprovement-s in Knitting-Machines; and I do hereby deciare thatthe following ia full, clear, and exact description of theconstructionand operation of the same, reference. being bad to theannexed drawing making a part of this specification and to the lettersand figures of reference marked thereon.

Figure 1 is a representation of a central vertical longitudinal sectionofthe machine;

Figure 2 is a vertical transverse section of the same. Figure 3 is aside view of the devices for regulatmg the attachment and adjustment ofthe take-up wire.

Figure 4 is a central longitudinal section of these devices. Y

Figurc'5is a view of the drum, with its grooved .cap or thumb-nut.

Figure 6 is a top view'of my invention.

Figures 7, 8, and 9 are views of the needle detached.

My invention has relation to knitting-machines of the Lamb .patte'rn;and

It consists in certain. improvements, whereby the movement of theyarncarrier is regulated and the take-up Wire properly attached andadjusted. Also, in an Improvement in the needles.

A A'represent the outer bars of the sliding frame carrying the mechanismfor feeding and regulating the tension of the yarn.

.B B is the needle-bed or central'stationary portion of the machine.

The knitting-needles q qwork-in grooves therein in the same manner as inthe Lamb machine.

0 represents the vertical opening isfthe part B B, through which theknit-work descends. v

The ends of th bars A A are connected by the pieces 0 0. They rest uponB B, and slide under the gibs-g g.

The sliding frame has a horizontal reciprocating notion, just as in theLamb'machine.

The mechanism for feeding and regulating the tension of the yarn isattached to the plate L L, which is fastened on the back bar A.

In feeding, the yarn passes through the holes in the front .end of thetension-stand E, as in the Lamb machine, except that in this case anopening, 1", is made at the side of the hole 0, so that the yarn can bepassed into the hole sidewise without passing the end of the yarnthrough c.

This gives a quicker and more convenient way of threading the machine.

Inthis-maehine the yarn-carrier S is pivoted in rear at P, while itsfront end has a lateral movement in the slot a.

The object of this lateral play is to admit of holding back the frontendof the yarn-carrier when the, motion of the sliding bars A A isreversed, so as to give the needles time to rise before the yarn-carrierreaches them.

In this machine the mechanism for holding back the front end of theyarn-carrier I consider more simple, better, and less liable toderangement, than that used in the Lamb machine.

It is constructed as follows, namely: on the tops of the supports N N,which .are fastened to the ends of the needle-bed, two springs, s s, arefastened. 'Whenthe machine is in operation, the free ends of thesesprings are first forced upward by the passage of the yarn-carrier Sunder them, and then they descend, clasping the yarn-carrier and holdingit back as long as the slot uwvill allow, when the motion of the slidingframe is reversed. The projections under the ends of'the springs s s areprovided with incli'ne'd faces nnderneath, in the manner shown.

The yarn-carrier S is also kept from changing its position, except whenactuated by the springss s, by the friction-spring a: 21:, which springis placed in a bed in the-plate L L, under tbs, yarn-carrier S, with itsconvexside uppermost, and in contact therewith.

Again, an improvement is made in this machine,"

in the mechanism for the attachment and adjustment of the take-up wirey.

' The rear end of this wire is wrapped around [the drum Hof thethumb-nut or cap G, and,'when' the drum is placed in the thirnble F, thewire'g passes into the right-angled'slot w w.

The friction-screw f holds G and its drum 11in place.

In' the inside of the top of .the thumb-nut is a groove, n a, in whichtheprojection c from the thimble F fits, so that the drum H is alwayskept truly centered in the thimble F, and the wire y, having free playin the vertical part of the slotw w, is never thrown out of position.

The f xed solid block t in the groove n it prevents the thumb-nut G frombeing turned too far forward or back by its striking against theprojection c. r A view of the side of the thimble F, with its slot w w,is given in fig. 3.

The reciprocating motion is given to the knittingneedles in the samemanner asin the Lamb machine,

- the needle being raised and lowered .by traveling in the groove in,between the center earn K and the wing cams c'o.

The heel of the shank, which is bent at right an-- gles to the needle,is provided with an expansion of a diamond or square shape. This isdesigned to reduce the amount of wear and friction, and to prevent thepoint of the center cam from striking against and breaking the needlesor needle-bed.

The yarn is kept in the eye by means of the wire a, which'acts in thenature of a spring .to close the openmg r.

This wire also serves as a check to hold the yarn when the slack istaken up in feeding the same.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The combination, with the reciprocating sliding 1 frame and. pivotedyarn-carrier, of the slotted adj ustable springs s s, to hold theyarn-carrier back when the motion of the sliding frame is reversed,substan- WM. K. H. PINNEY, A. M. ROBISON.

